Steady and transient state analysis of a matrix-reactance frequency converter based on a boost PWM AC matrix-reactance chopper

Abstract

This paper deals with a three-phase matrix-reactance frequency converter (MRFC). The analysed MRFC topology is based on the boost matrix-reactance chopper (MRC) with a load synchronous connected switch (LSCS) set arranged as in the step-up matrix converter (MC). The MRFC in question makes it possible to obtain a load output voltage much greater than the input voltage. Presented in this paper is a description of a new method for the analysis of the steady and transient state properties of the presented MRFC. The analytical method based on d-q transformation is proposed for solving non-stationary equations, which we derive as a mathematical model of the state-space averaged method applying to the analysis of the discussed MRFC. The analysis results are obtained for a classical Venturini control strategy. Furthermore, for the verification of the theoretical analysis the simulation test results are also presented.